Warning device for tunnel construction

Abstract

This utility model discloses a warning device for tunnel construction, relating to the field of construction safety warning technology. It includes a base housing and a warning light. An L-shaped bracket is welded to the top of the base housing. The end of the connecting rod away from the L-shaped bracket is rotatably connected to the warning sign support rod. A ring-shaped reflective strip is provided on the right side surface of the circular warning sign. A gear is connected to the bottom of the circular warning sign. The warning light is located at the top of the L-shaped bracket, and a transparent protective cover covers the outside of the warning light. This utility model uses a controller and power supply to control the motor's start. The motor's output shaft drives the gear to rotate. Because the teeth on the edge of the circular warning sign mesh with the gear, the circular warning sign rotates accordingly. A rubber scraper adheres to the surface of the circular warning sign. When the circular warning sign rotates, the fixed rubber scraper scrapes off dust from the surface of the circular warning sign, facilitating self-cleaning.

Description

Technical Field

[0001] This utility model relates to the field of construction safety warning technology, specifically a warning device used in tunnel construction. Background Technology

[0002] Tunnels are engineering structures buried in the earth's strata and are a form of human utilization of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. The structure of a tunnel includes two parts: the main building and auxiliary equipment. Some dangers may occur during the construction of a tunnel. In order to keep people who are not involved in the construction away from the construction site, warning devices need to be set up at the tunnel construction site.

[0003] Existing tunnel safety warning devices typically consist of warning signs paired with reflective strips. However, construction generates a lot of dust, which covers the surface of the warning signs and obstructs the reflective strips, reducing their warning effectiveness. Therefore, there is an urgent need for warning devices for tunnel construction. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a warning device for tunnel construction, in order to solve the problem that existing tunnel safety warning devices usually use warning signs with reflective strips, but a lot of dust is easily generated during construction, and the dust covers the surface of the warning sign, causing the reflective strips to be blocked, which reduces the warning effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a warning device for tunnel construction, comprising a base box and a warning light. An L-shaped bracket is welded to the top of the base box, and a connecting rod is integrally provided on the right side of the L-shaped bracket. The end of the connecting rod away from the L-shaped bracket is rotatably connected to a warning sign support rod. A circular warning sign is integrally provided on the right side of the warning sign support rod. An annular reflective strip is provided on the right surface of the circular warning sign, and the edge of the circular warning sign is provided with serrations. A gear is connected to the bottom of the circular warning sign, and a motor is installed on the left side of the gear. A power supply, a motor, and a controller are installed sequentially from top to bottom inside the base box.

[0006] The warning light is mounted on the top of the L-shaped bracket and is connected to a power source via a wire. The outside of the warning light is covered with a transparent protective cover. A vertical plate is fixed to the bottom right end of the L-shaped bracket, and a rubber scraper is installed on the side of the vertical plate near the circular warning sign.

[0007] Preferably, the teeth on the edge of the circular warning sign mesh with the gear, and the output shaft of the motor passes through the right side of the base housing via a bearing and is connected to the gear.

[0008] Preferably, both the motor and the power supply are provided with a fixing plate at their bottom, and the fixing plate is welded to the inside of the base housing.

[0009] Preferably, the base box is fitted with a hinge on its edge, and the base box is rotatably connected to the maintenance door via the hinge, and the outer surface of the maintenance door is provided with a handle.

[0010] Preferably, the L-shaped bracket is configured with an internal hollow structure, and the transparent protective cover is fixed to the top of the L-shaped bracket by a circular mounting bracket, and the transparent protective cover and the circular mounting bracket are threaded together.

[0011] Preferably, the longitudinal plate has a limiting groove inside, and both the longitudinal plate and the rubber scraper have threaded holes on their surfaces, with screws passing through the threaded holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model controls the motor to start through a controller and power supply. The output shaft of the motor drives the gear to rotate. Since the teeth on the edge of the circular warning sign mesh with the gear, the circular warning sign rotates accordingly. The rubber scraper is attached to the surface of the circular warning sign. When the circular warning sign rotates, the fixed rubber scraper scrapes off the dust on the surface of the circular warning sign, which facilitates the self-cleaning of the circular warning sign.

[0014] 2. This utility model is equipped with a dual warning mechanism, including an annular reflective strip and a warning light on the circular warning sign, which provides a better warning effect for vehicles. A transparent protective cover is provided on the outside of the warning light to prevent the warning light from being damaged by stones during vehicle operation.

[0015] 3. In this utility model, the rubber scraper is fixed inside the longitudinal plate by screws, so the rubber scraper is easy to disassemble and assemble. When the rubber scraper ages due to long-term use and its cleaning ability is reduced, the rubber scraper can be replaced in time. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a front view structural diagram of the present utility model;

[0019] Figure 4 This is a schematic diagram of the right side structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the transparent protective cover of this utility model;

[0021] Figure 6 This is a schematic diagram of the rubber scraper installation structure of this utility model.

[0022] In the diagram: 1. Base housing; 2. L-shaped bracket; 3. Connecting rod; 4. Warning sign support rod; 5. Circular warning sign; 6. Circular reflective strip; 7. Toothed pattern; 8. Gear; 9. Motor; 10. Power supply; 11. Fixing plate; 12. Controller; 13. Maintenance door; 14. Hinge; 15. Handle; 16. Wire; 17. Warning light; 18. Circular mounting bracket; 19. Transparent protective cover; 20. Vertical plate; 21. Rubber scraper; 22. Limiting groove; 23. Threaded hole; 24. Screw. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] The embodiments of this utility model will be described below based on its overall structure.

[0025] Please see Figure 1-6 A warning device for tunnel construction includes a base housing 1 and a warning light 17. An L-shaped bracket 2 is welded to the top of the base housing 1, and a connecting rod 3 is integrally installed on the right side of the L-shaped bracket 2. The end of the connecting rod 3 away from the L-shaped bracket 2 is rotatably connected to a warning sign support rod 4. A circular warning sign 5 is integrally installed on the right side of the warning sign support rod 4. An annular reflective strip 6 is provided on the right surface of the circular warning sign 5, and the edge of the circular warning sign 5 is provided with teeth 7. A gear 8 is connected to the bottom of the circular warning sign 5, and a motor 9 is installed on the left side of the gear 8. Inside the base housing 1, from top to bottom, a power supply 10, a motor 9, and a controller 12 are installed sequentially. The teeth 7 on the edge of the circular warning sign 5 mesh with the gear 8, and the output shaft of the motor 9 passes through the base housing via a bearing. The right side of 1 is connected to gear 8. Motor 9 is connected to power supply 10. Controller 12 controls motor 9 to start. Motor 9 drives gear 8 to rotate. Under the meshing action of tooth 7 and gear 8, the circular warning sign 5 rotates accordingly, which facilitates the self-cleaning of circular warning sign 5. The bottom of motor 9 and power supply 10 are both provided with fixing plates 11, and fixing plates 11 are welded to the inside of base box 1. Fixing plates 11 provide support for motor 9 and power supply 10. Motor 9 and power supply 10 are electrically connected. The edge of base box 1 is equipped with hinges 14, and base box 1 is rotatably connected to maintenance door 13 through hinges 14. The outer surface of maintenance door 13 is provided with handle 15. When any of motor 9, power supply 10 or controller 12 fails, it can be repaired in time through maintenance door 13.

[0026] The warning light 17 is mounted on the top of the L-shaped bracket 2 and is connected to the power supply 10 via a wire 16. A transparent protective cover 19 covers the outside of the warning light 17. The L-shaped bracket 2 has a hollow internal structure, and the transparent protective cover 19 is fixed to the top of the L-shaped bracket 2 via a circular mounting bracket 18. The transparent protective cover 19 and the circular mounting bracket 18 are threaded together. The hollow L-shaped bracket 2 facilitates the arrangement of the wire 16. The power supply 10 provides power to the warning light 17 via the wire 16. The warning light 17 can warn oncoming vehicles. The transparent protective cover 19 prevents vehicles from running over stones and damaging the warning light 17. The transparent protective cover 19 uses a threaded connection. The L-shaped bracket 2 is fixed to the outside of the warning light 17 for easy disassembly and assembly. A vertical plate 20 is fixed to the bottom right end of the bracket 2, and a rubber scraper 21 is installed on the side of the vertical plate 20 near the circular warning sign 5. A limiting groove 22 is opened inside the vertical plate 20, and threaded holes 23 are opened on the surfaces of the vertical plate 20 and the rubber scraper 21. A screw 24 passes through the threaded hole 23. The limiting groove 22 is used to place the rubber scraper 21. The rubber scraper 21 is fixed inside the vertical plate 20 by the screw 24. The rubber scraper 21 is attached to the circular warning sign 5. When the circular warning sign 5 is rotated, the fixed rubber scraper 21 can scrape off the dust on the surface of the circular warning sign 5, preventing the annular reflective strip 6 from being blocked.

[0027] Working principle: When in use, the device is moved to the tunnel construction site. The annular reflective strip 6 and warning light 17 on the circular warning sign 5 can remind vehicles to slow down. The transparent protective cover 19 can prevent vehicles from running over rocks and damaging the warning light 17 during driving. The transparent protective cover 19 is fixed to the outside of the warning light 17 by a threaded connection, which is convenient for disassembly and assembly. The rotation interval of the motor 9 is set by the controller 12. According to the actual situation, the motor 9 can be set to start once every one hour or two hours. When the motor 9 starts, the output shaft of the motor 9 drives the gear 8 to rotate. When the circular warning sign 5 rotates, the teeth 7 on its edge mesh with the gear 8, and the connecting rod 3 is rotatably connected to the warning sign support rod 4. As a result, the circular warning sign 5 rotates. Since the rubber scraper 21 is attached to the surface of the circular warning sign 5, when the circular warning sign 5 rotates, the fixed rubber scraper 21 can scrape off the dust on the surface of the circular warning sign 5, which facilitates the self-cleaning of the circular warning sign 5. The rubber scraper 21 will be damaged after long-term use. The rubber scraper 21 can be replaced by turning the screw 24 counterclockwise to remove the rubber scraper 21 from the inside of the longitudinal plate 20.

[0028] The device is controlled automatically by the controller 12. The control circuit of the controller 12 can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. Therefore, the control method and circuit connection of the device will not be explained in detail.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A warning device for tunnel construction, comprising a base housing (1) and a warning light (17), characterized in that: The top of the base box (1) is welded with an L-shaped bracket (2), and a connecting rod (3) is integrally provided on the right side of the L-shaped bracket (2). The end of the connecting rod (3) away from the L-shaped bracket (2) is rotatably connected to the warning sign support rod (4). A circular warning sign (5) is integrally provided on the right side of the warning sign support rod (4). An annular reflective strip (6) is provided on the right surface of the circular warning sign (5). The edge of the circular warning sign (5) is provided with teeth (7). A gear (8) is connected to the bottom of the circular warning sign (5). A motor (9) is installed on the left side of the gear (8). The power supply (10), the motor (9) and the controller (12) are installed in the interior of the base box (1) from top to bottom. The warning light (17) is located at the top of the L-shaped bracket (2) and is connected to the power supply (10) via a wire (16). The outside of the warning light (17) is covered with a transparent protective cover (19). A vertical plate (20) is fixed at the bottom right end of the L-shaped bracket (2), and a rubber scraper (21) is installed on the side of the vertical plate (20) near the circular warning sign (5).

2. The warning device for tunnel construction according to claim 1, characterized in that: The teeth (7) on the edge of the circular warning sign (5) mesh with the gear (8), and the output shaft of the motor (9) passes through the right side of the base box (1) through the bearing and is connected to the gear (8).

3. The warning device for tunnel construction according to claim 1, characterized in that: The bottom of both the motor (9) and the power supply (10) is provided with a fixing plate (11), and the fixing plate (11) is welded to the inside of the base box (1).

4. The warning device for tunnel construction according to claim 1, characterized in that: The base box (1) is fitted with a hinge (14) on its edge, and the base box (1) is rotatably connected to the maintenance door (13) via the hinge (14), and the outer surface of the maintenance door (13) is provided with a handle (15).

5. The warning device for tunnel construction according to claim 1, characterized in that: The L-shaped bracket (2) is configured with an internal hollow structure, and the transparent protective cover (19) is fixed to the top of the L-shaped bracket (2) by a circular mounting bracket (18), and the transparent protective cover (19) and the circular mounting bracket (18) are threaded together.

6. The warning device for tunnel construction according to claim 1, characterized in that: The longitudinal plate (20) has a limiting groove (22) inside, and both the longitudinal plate (20) and the rubber scraper (21) have threaded holes (23) on their surfaces, and screws (24) pass through the threaded holes (23).

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